Amazon's S3 Simple Storage Service has outperformed Microsoft's Windows Azure Storage and all other major providers in an extensive study testing the feasibility of businesses using cloud services for primary storage, data protection, and disaster recovery.

Online retailers have long gathered behavioral metrics about how customers shop, tracking their movements through e-shopping pages and using data to make targeted offers based on user profiles. Retailers in meat-space have had tried to replicate that with frequent shopper offers, store credit cards, and other ways to get shoppers to voluntarily give up data on their behavior, but these efforts have lacked the sort of data capacity provided by anonymous store browsers—at least until now. This holiday season, shopping malls in the US have started collecting data about shoppers by tracking the closest thing to "cookies" human beings carry—their cell phones.